Weatherstrip - windows 8 and 10
This is the seal at the bottom of the window glass, inside and out, on all four wind-up windows.
The original seals were made of fabric on mild steel and have almost certainly gone rusty
The revised seals are made of stainless steel and will not rust
They are sold as a pair, 2 pairs are required for the front and two for the rear ( they are slightly different sizes) £40per pair
Also available: the clips that attach the seals to the door ( 10 required per pair) £2.50 See associated product